In the 20th century, some thinkers, like Paul Ramsey, tried to reestablish the older, explicitly religious foundations for just war thought. Others, like Michael Walzer, did the opposite, trying to found just war on felt the moral intuition of liberalism. Both sought to amend the Westphalian order to make greater room for human rights or the sanctity of human life, which marks the beginning of the Liberal tradition of just war thinking. Ramsey approached the subject from an explicitly theological perspective but still supported key Liberal tenets, like democracy, human rights, and the “international common good.” Ramsey’s emphasis on love as the cornerstone of just war meant human life was an absolute value, more important than Westphalian sovereignty. Walzer was more explicit about his liberalism, but he built it on weaker foundations. He sought to amend the Westphalian tradition to allow for intervention for humanitarian purposes, a position he strengthened in later work, but he also maintained a preference for national self-determination without concern for ideology or regime type that was in tension with his commitment to human rights.